Assessment of sulphur deficiency in commercial oilseed rape crops from plant analysis
| العنوان: | Assessment of sulphur deficiency in commercial oilseed rape crops from plant analysis |
|---|---|
| المؤلفون: | P. Le Gouée, Jean-Christophe Avice, Nathalie Nesi, Alain Ourry, M. Abdallah, Olivier Cantat, Sylvain Diquélou, X. Sarda |
| المساهمون: | Ecophysiologie Végétale, Agronomie et Nutritions (EVA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Recherche Agronomique (INRA), Institut de Génétique, Environnement et Protection des Plantes (IGEPP), Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST, Littoral, Environnement, Télédétection, Géomatique (LETG - Caen), Littoral, Environnement, Télédétection, Géomatique UMR 6554 (LETG), Normandie Université (NU)-Normandie Université (NU)-Université d'Angers (UA)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN), Université de Nantes (UN)-Université de Nantes (UN)-Université de Caen Normandie (UNICAEN), Université de Nantes (UN)-Université de Nantes (UN), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Normandie Université (NU)-Normandie Université (NU)-Université d'Angers (UA)-Université de Nantes (UN)-École pratique des hautes études (EPHE)-Université de Brest (UBO)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Normandie Université (NU)-Normandie Université (NU)-Université d'Angers (UA)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Brest (UBO)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN), AGROCAMPUS OUEST-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Recherche Agronomique (INRA) |
| المصدر: | Journal of Agricultural Science Journal of Agricultural Science, 2014, 152 (4), pp.616-633. ⟨10.1017/S0021859613000105⟩ Journal of Agricultural Science, Cambridge University Press (CUP), 2014, 152 (4), pp.616-633. ⟨10.1017/S0021859613000105⟩ |
| بيانات النشر: | Cambridge University Press (CUP), 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | 0106 biological sciences, DIFFERENT GROWTH-STAGES, [SDV]Life Sciences [q-bio], Brassica, engineering.material, S UPTAKE, 01 natural sciences, Lolium perenne, chemistry.chemical_compound, Human fertilization, Nitrate, NITROGEN USE EFFICIENCY, Genetics, LEAF SENESCENCE, Sulfate assimilation, LOLIUM-PERENNE, 2. Zero hunger, biology, food and beverages, 04 agricultural and veterinary sciences, 15. Life on land, REMOBILIZATION, biology.organism_classification, BRASSICA-NAPUS L, YIELD, SEED QUALITY, Agronomy, chemistry, Glucosinolate, Soil water, 040103 agronomy & agriculture, engineering, 0401 agriculture, forestry, and fisheries, Animal Science and Zoology, SULFATE ASSIMILATION, Fertilizer, Agronomy and Crop Science, 010606 plant biology & botany |
| الوصف: | SUMMARYSulphur (S) is one of the six main macroelements required to sustain the growth of plants. Sources include soil, fertilizer and atmospheric deposition, which has been reduced by 85% over the last three decades. Risks of S deficiencies are now recognized in high S-demanding species such as Brassica napus L. With the aims of evaluating the risk of excessive or insufficient fertilization and identifying robust relationships that may be used as plant S status indicators, 57 commercial crops of oilseed rape were selected among contrasting soils and along a rainfall gradient that may affect soil S availability. Cultivation practices were investigated and the S and nitrogen (N) concentrations of soil, senescing leaves, stems and seeds were analysed. Despite an excessive organic N supply and large variation in S supply (from 0 to 112 kg S/ha), principal component analysis using 43 parameters indicated that seed yield was poorly related to N and S fertilization rates. While the N and protein-N concentrations in seeds were inversely related to oil and glucosinolate concentrations, they were linked to S and sulphate (SO42−) accumulation in the seeds. Sulphate concentrations in senescing leaves, stems or seeds could be deduced from total S concentrations, as they were positively and highly correlated. Sulphate accounted for on average 0·69 of total S in senescing leaves with minimum and maximum values of 0·007 and 0·94, which revealed conditions of limited and excess supply of S, respectively. This high variation of SO42− concentration in leaves can be interpreted as the result of its mobilization triggered by S deficiency, but cannot be used alone as an indicator of plant S status. A comparison with plants grown in controlled conditions under different S supplies suggests that the intensity of S starvation affects N metabolism, leading to NO3− (nitrate) accumulation. It is further suggested that dual evaluation of SO42− and NO3− concentrations in senescing leaves could be used at the vegetative stage as a field indicator to adjust S fertilization. |
| تدمد: | 1469-5146 0021-8596 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03f5b031bb29cc0c5cf42a89161572faTest https://doi.org/10.1017/s0021859613000105Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....03f5b031bb29cc0c5cf42a89161572fa |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14695146 00218596 |
|---|